<template>
  <view class="uni-load-more">
    <view v-show="status === 'loading' && showIcon" class="uni-load-more__img">
      <view class="load1">
        <view :style="{background:color}" />
        <view :style="{background:color}" />
        <view :style="{background:color}" />
        <view :style="{background:color}" />
      </view>
      <view class="load2">
        <view :style="{background:color}" />
        <view :style="{background:color}" />
        <view :style="{background:color}" />
        <view :style="{background:color}" />
      </view>
      <view class="load3">
        <view :style="{background:color}" />
        <view :style="{background:color}" />
        <view :style="{background:color}" />
        <view :style="{background:color}" />
      </view>
    </view>
    <text :style="{color:color}" class="uni-load-more__text">
      {{ status === 'more' ? contentText.contentdown : (status === 'loading' ? contentText.contentrefresh : contentText.contentnomore) }}
    </text>
  </view>
</template>

<script>
export default {
  name: 'UniLoadMore',
  props: {
    status: {
      // 上拉的状态：more-loading前；loading-loading中；noMore-没有更多了
      type: String,
      default: 'more'
    },
    showIcon: {
      type: Boolean,
      default: true
    },
    color: {
      type: String,
      default: '#777777'
    },
    contentText: {
      type: Object,
      default() {
        return {
          contentdown: '上拉显示更多',
          contentrefresh: '正在加载...',
          contentnomore: '没有更多数据了'
        }
      }
    }
  },
  data() {
    return {}
  }
}
</script>

<style>
	@charset "UTF-8";

	.uni-load-more {
		display: flex;
		flex-direction: row;
		height: 80upx;
		align-items: center;
		justify-content: center
	}

	.uni-load-more__text {
		font-size: 28upx;
		color: #999
	}

	.uni-load-more__img {
		height: 24px;
		width: 24px;
		margin-right: 10px
	}

	.uni-load-more__img>view {
		position: absolute
	}

	.uni-load-more__img>view view {
		width: 6px;
		height: 2px;
		border-top-left-radius: 1px;
		border-bottom-left-radius: 1px;
		background: #999;
		position: absolute;
		opacity: .2;
		transform-origin: 50%;
		animation: load 1.56s ease infinite
	}

	.uni-load-more__img>view view:nth-child(1) {
		transform: rotate(90deg);
		top: 2px;
		left: 9px
	}

	.uni-load-more__img>view view:nth-child(2) {
		transform: rotate(180deg);
		top: 11px;
		right: 0
	}

	.uni-load-more__img>view view:nth-child(3) {
		transform: rotate(270deg);
		bottom: 2px;
		left: 9px
	}

	.uni-load-more__img>view view:nth-child(4) {
		top: 11px;
		left: 0
	}

	.load1,
	.load2,
	.load3 {
		height: 24px;
		width: 24px
	}

	.load2 {
		transform: rotate(30deg)
	}

	.load3 {
		transform: rotate(60deg)
	}

	.load1 view:nth-child(1) {
		animation-delay: 0s
	}

	.load2 view:nth-child(1) {
		animation-delay: .13s
	}

	.load3 view:nth-child(1) {
		animation-delay: .26s
	}

	.load1 view:nth-child(2) {
		animation-delay: .39s
	}

	.load2 view:nth-child(2) {
		animation-delay: .52s
	}

	.load3 view:nth-child(2) {
		animation-delay: .65s
	}

	.load1 view:nth-child(3) {
		animation-delay: .78s
	}

	.load2 view:nth-child(3) {
		animation-delay: .91s
	}

	.load3 view:nth-child(3) {
		animation-delay: 1.04s
	}

	.load1 view:nth-child(4) {
		animation-delay: 1.17s
	}

	.load2 view:nth-child(4) {
		animation-delay: 1.3s
	}

	.load3 view:nth-child(4) {
		animation-delay: 1.43s
	}

	@-webkit-keyframes load {
		0% {
			opacity: 1
		}

		100% {
			opacity: .2
		}
	}
</style>
